ContainerContext.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.tez.common;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.Writable;

// TODO EVENTUALLY move this over to PB. Fix package/module.
// TODO EVENTUALLY unit tests for functionality.
public class ContainerContext implements Writable {

  String containerIdentifier;

  public ContainerContext() {
    containerIdentifier = "";
  }

  public ContainerContext(String containerIdStr) {
    this.containerIdentifier = containerIdStr;
  }

  public String getContainerIdentifier() {
    return containerIdentifier;
  }

  @Override
  public void readFields(DataInput in) throws IOException {
    this.containerIdentifier = Text.readString(in);
  }

  @Override
  public void write(DataOutput out) throws IOException {
    Text.writeString(out, containerIdentifier);
  }
}